CN113441968A

CN113441968A - Aluminum alloy machining tool

Info

Publication number: CN113441968A
Application number: CN202110845435.6A
Authority: CN
Inventors: 蔡国华; 赵明星
Original assignee: Shaoxing Run'an Electrical Co ltd
Current assignee: Shaoxing Run'an Electrical Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-09-28
Anticipated expiration: 2041-07-26
Also published as: CN113441968B

Abstract

The invention discloses an aluminum alloy processing tool, which relates to technical equipment and comprises a clamp base and a fixing mechanism arranged on the clamp base, wherein the fixing mechanism comprises a fixing arm and a pressing head, one end of the fixing arm is hinged to the clamp base, the pressing head is arranged on the fixing arm in a lifting mode, a fixing space for placing a workpiece is formed between the pressing head and the clamp base, and a locking assembly used for locking the free end of the fixing arm is arranged on one side, far away from the rotating shaft of the fixing arm, of the clamp base. The adjustable fixing arm can adjust the distance between the adjustable fixing arm and the clamp base according to the change of the shape and the size of a workpiece so as to adapt to positioning of workpieces with different thicknesses, and the rotatable transfer joint can be automatically adapted according to the surface angle of the workpiece, so that the workpiece can be pressed on the clamp base by the pressing head in a state of being vertical to the surface of the workpiece, the constraint force of the pressing head on the workpiece is improved, and the workpiece is not easy to fall off in the machining process.

Description

Aluminum alloy machining tool

Technical Field

The invention relates to the field of process equipment, in particular to an aluminum alloy processing tool.

Background

Aluminum alloys are widely used in industry because of their light weight and hardness. In the application process, the aluminum alloy needs to be machined to form a required product, and in the process, in order to improve the machining precision of the product, a tool is usually used for positioning the aluminum alloy raw material.

At present, the invention, whose publication number is CN208231638U, discloses a tool holder for fixing a workpiece, which includes a tool holder body, wherein two sides of the bottom of the tool holder body are respectively integrally formed with a fixing base, two fixing screw holes are respectively formed on the two fixing bases, the tool holder body is rotatably connected with a control handle through a rotating shaft, one end of the control handle, which is different from the tool holder body, is embedded and fixed with a protective cushion, the tool holder body is integrally formed with a first fixing clamp block, the tool holder body is rotatably connected with a second fixing clamp block through a rotating shaft, and the upper surface of the first fixing clamp block is provided with a first sliding groove.

To the correlation technique among the above-mentioned, this kind of anchor clamps are when using, drive the second fixed clamp splice through the control handle and rotate towards first fixed clamp splice and realize the centre gripping to the work piece, because the second fixed clamp splice is connected on the frock clamp body through the pivot rotation, consequently first fixed clamp splice and second fixed clamp splice are that the scissors form carries out the centre gripping to the work piece, this kind of centre gripping form makes first fixed clamp splice and second fixed clamp splice can not laminate with the work piece surface completely, can produce the contained angle with the work piece, when the work piece receives the effort that comes from the cutter cutting and produce, because the contact is insufficient, the work piece is very easy to deviate from in the centre gripping mouth, lead to the centre gripping poor stability of work piece.

Disclosure of Invention

The invention provides an aluminum alloy machining tool in order to improve the clamping stability of a workpiece.

The aluminum alloy processing tool provided by the invention adopts the following technical scheme:

the utility model provides an aluminum alloy processing frock, includes the anchor clamps base and sets up the fixed establishment who just is used for fixed work piece on the anchor clamps base, fixed establishment includes that one end articulates fixed arm, the lift on the anchor clamps base and sets up on the fixed arm and be used for compressing tightly the pressure piece head on the anchor clamps base with the work piece, form the fixed space that is used for supplying the work piece to put into between pressure piece head and the anchor clamps base, and keep away from the fixed arm axis of rotation one side on the anchor clamps base and be provided with the hasp subassembly that is used for locking the fixed arm free end.

By adopting the technical scheme, when a workpiece is fixed, the locking assembly is unlocked firstly, so that the fixing arm can be turned upwards to vacate the surface space of the clamp base, after the workpiece is placed on the clamp base, the fixing arm is turned back again to enable the fixing arm to be parallel to the surface of the clamp base as much as possible and fixed by the locking assembly, then the height of the pressing head is adjusted to enable the pressing head to extrude the workpiece and press the workpiece on the clamp base, and the pressing head and the clamp base are respectively positioned on two sides of the workpiece, so that the pressing force applied by the pressing head to the workpiece is closer to the state vertical to the surface of the workpiece, the clamp base and the pressing head have better contact force to the workpiece, the constraint force of the clamp base and the pressing head to the workpiece is improved, and the workpiece is not easy to be separated from the fixing space in the cutting process, thereby achieving the purpose of improving the clamping stability of the workpiece.

Optionally, the pressing head includes a lifting adjusting rod threaded through the fixing arm, a middle rotating joint mounted on one end of the lifting adjusting rod close to the clamp base in a universal joint manner, and a pressing claw rotatably mounted on the middle rotating joint, and a pressing protrusion for abutting against the surface of the workpiece is arranged on the surface of one side of the pressing claw facing the clamp base.

By adopting the technical scheme, the lifting adjusting rod is used for adjusting the distance between the pressing piece head and the clamp base, the pressing piece claw can deflect according to the surface shape of the workpiece through the middle joint, so that the surface of the workpiece in an inclined state can be better adapted, the pressing force of the pressing piece head on the workpiece can be always in the direction vertical to the surface of the workpiece, meanwhile, the pressing protrusion on the pressing piece claw can enhance the contact between the pressing piece claw and the workpiece, and the pressing piece head can better press the workpiece on the clamp base.

Optionally, the pressing part claws are at least three, each pressing part claw is provided with a connecting part in a whole, the connecting parts on the pressing part claws are overlapped with each other to enable the pressing part claws to be in the same plane, and the pressing part claws are connected with the middle rotating joint in a threaded manner after penetrating through the connecting parts of all the pressing part claws through a fastening piece to form a rotating installation relation with the middle rotating joint.

By adopting the technical scheme, the pressing part claws mainly have the effects that the pressing force of the pressing part head is dispersed to all directions of the workpiece, so that the workpiece can be contacted with the clamp base in a more reasonable state, and meanwhile, after all the pressing part claws are positioned on the same plane, the pressing force shared by all the pressing part claws is almost equal, thereby achieving the purpose of better positioning the workpiece.

Optionally, the fixed arm is hinged to the fixture base through a connector, the connector comprises a mounting seat fixed to the fixture base and provided with a mounting cavity, a connecting block arranged in the mounting cavity of the mounting seat in a telescopic mode, and an adjusting assembly arranged on the mounting seat and used for adjusting the extending length of the connecting block, and the fixed arm is hinged to one end, located outside the mounting cavity, of the connecting block.

Through adopting above-mentioned technical scheme, the work piece that needs processing probably the size can be different, consequently through the telescopic connecting block after as the medium that fixed arm and anchor clamps base link to each other for operating personnel can expose the length outside the mount pad to the connecting block according to the thickness of waiting to process the work piece and adjust, can change the distance between fixed arm and the anchor clamps base through this operation promptly, thereby make fixed establishment can adapt to the requirement that compresses tightly of each size work piece better.

Optionally, the adjusting part including set up on the mount pad lateral wall and with the adjustment tank that the installation cavity is linked together, inlay and locate in the adjustment tank and circle the mouth diameter be greater than the holding cavity internal diameter the holding ring, set up in the installation cavity and lie in the elasticity ejecting between installation cavity tank bottom and the connecting block, the holding ring is the fracture ring, the cross sectional dimension of connecting block reduces gradually from the in-process that the installation cavity tank bottom extended outward, the both ends of holding ring are provided with the end respectively, adjusting screw is worn to be equipped with by the screw thread on two ends of holding ring, adjusting screw is last to have two sections to revolve to opposite screw thread.

Through adopting above-mentioned technical scheme, when the extension length of connecting block increases as needs are adjusted, can directly unscrew adjusting screw, make the circle mouth increase of holding ring, at this in-process, elasticity ejecting can promote the connecting block and stretch out outward to the installation cavity, and because the cross sectional dimension of connecting block dwindles gradually from the in-process that the installation cavity tank bottom extended outward, consequently the connecting block can be blocked by the holding ring, make every increase of holding ring a bit, the connecting block can only correspond and stretch out a bit, thereby make things convenient for the extension length of accurate regulation connecting block. And when the extension length that needs adjust the connecting block reduces, will press in the connecting block toward the installation cavity excess earlier, then screw up adjusting screw, lock the position of connecting block, loosen adjusting screw again gradually afterwards, make the circle mouth of holding ring slowly increase, the circle mouth of holding ring is at the in-process of increase, elasticity ejecting can push out the installation cavity with the connecting block gradually, until the length that exposes of connecting block reaches the value that needs, make the fixed arm can adjust according to the thickness of the work piece of treating compressing tightly, thereby make the pressure piece head compress tightly the work piece, the fixed arm can reach the state that is close to being on a parallel with anchor clamps base surface all the time, compress tightly the work piece with the better.

Optionally, the hasp subassembly is including offering on the lateral wall of anchor clamps base and the degree of depth along the spout that anchor clamps base diametric (al) extended, a plurality of being used for forming the complex locking piece of pegging graft with the spout, be formed with hasp portion on the locking piece, form the hasp space that is used for supplying the tip embedding of fixed arm between the surface of hasp portion and anchor clamps base, and the height in hasp space is crescent along with the change of locking piece.

Through adopting above-mentioned technical scheme, the spout of following anchor clamps base lateral wall and opening into, make locking piece and spout form the cooperation back, be difficult to produce along the ascending removal of anchor clamps base axial direction, and the upset of fixed arm on the anchor clamps base, go on along the axial of anchor clamps base, consequently after locking piece and fixed arm form the lock, can restrict the rotation of fixed arm, by the reaction force that produces when the pressure head compresses tightly the work piece simultaneously, can make locking piece and fixed arm support tightly each other, through the radial removal of fixed arm and locking piece edge anchor clamps base of frictional force restriction between the locking piece, thereby make the fixed arm be difficult to take place to unhook at the in-process of location work piece.

Optionally, still be provided with centering mechanism on the anchor clamps base, centering mechanism is including sliding the centering piece that installs on the anchor clamps base and follow anchor clamps base radial motion, set up on the anchor clamps base and be used for ordering about centering piece towards the drive assembly of anchor clamps base central motion, centering piece is provided with threely at least, is the annular distribution around the center of anchor clamps base between a plurality of centering pieces, and forms the centering space that is used for supplying the work piece to put into between a plurality of centering pieces.

Through adopting above-mentioned technical scheme, put on the anchor clamps base at the work piece after, order about through drive assembly between the centering piece and be close to each other, carry out the centre gripping to the lateral wall of work piece to further fix a position the work piece, thereby make the work piece in the course of working, be difficult to take place to drop from the anchor clamps base more.

Optionally, the driving assembly includes an eccentric block rotatably mounted on the clamp base and located on one side of the centering block opposite to the center of the clamp base, a rotating member disposed on the clamp base and used for driving the eccentric block to rotate, and a tightening member disposed between the eccentric block and the centering block and used for driving the circular arc side walls of the centering block and the eccentric block to abut against each other, and a concave groove for embedding the eccentric block is formed in the surface of the centering block facing one side of the eccentric block.

Through adopting above-mentioned technical scheme, make to be in the butt state all the time between eccentric block and the centering piece through the tensioning piece, and then make and order about the eccentric block at the rotating member and produce rotatory in-process, can promote to be close to each other or keep away from between the centering piece to reach the purpose of carrying out the centre gripping to the work piece lateral wall.

Optionally, the fixed surface of anchor clamps base back to eccentric block one side has vice seatcover, form the piston space that is used for supplying the rotating member to pack into between vice seatcover and the anchor clamps base, just set up the blow vent that is linked together with the piston space on the lateral wall of vice seatcover, the rotating member is including sliding the centering dish of installing in the piston space, the connecting hole has been seted up on the centering dish, an organic whole is provided with the rotating block on the inner wall of connecting hole, the eccentric block passes the one end of anchor clamps base and is fixed with the cooperation axle that is used for penetrating in the connecting hole, the cooperation is epaxial to be seted up and is the swivelling chute that the spiral moved towards along its length direction, the rotating block inlays to be located in the swivelling chute.

Through adopting above-mentioned technical scheme, vice seat lid is used for covering the centering dish, with the direction of motion of restraint centering dish, and the blow vent on vice seat lid lateral wall then is used for supplying the inside and outside air in piston space to exchange, with the hindrance of negative pressure to the centering dish motion under the elimination confined environment, when the axial of centering dish along the anchor clamps base is linear motion, can arouse the rotation block to produce at the rotation inslot and remove, and because the rotation slot is the form that the spiral trend moves towards, consequently the in-process of the one end trend of rotation slot of rotation block to the other end, can guide the eccentric block and produce rotatoryly, thereby make the eccentric block can promote the centering block and form the centre gripping to the work piece.

Optionally, the tensioning member includes a tension spring, a hanging column is fixed at the rotation center of the eccentric block, one end of the tensioning member is hooked on the centering block, and the other end is hooked on the hanging column.

Through adopting above-mentioned technical scheme, the peg is used for supplying the extension spring to collude and takes advantage of power, make the extension spring can form better with the eccentric block and be connected, and the extension spring then can be repeated deformation, and can automatic re-setting after losing exogenic action, consequently use back between eccentric block and centering piece, can hold eccentric block and centering piece, make both have the trend of mutual butt all the time, thereby when the eccentric block rotates towards the one side of keeping away from anchor clamps base center, can take centering piece to relax the work piece.

In conclusion, the adjustable fixing arm can adjust the distance between the fixing arm and the clamp base according to the change of the shape and the size of a workpiece to adapt to positioning of the workpieces with different thicknesses, and the rotatable transfer joint can be automatically adapted according to the surface angle of the workpiece, so that the workpiece can be pressed on the clamp base by the pressing head in a state perpendicular to the surface of the workpiece, the constraint force of the pressing head on the workpiece is improved, and the workpiece is not easy to fall off in the machining process.

Drawings

FIG. 1 is an overall structural view of the aluminum alloy processing tool of the present invention;

FIG. 2 is a schematic view of a connecting structure of a fixing arm and a connecting block in a connector of the aluminum alloy processing tool;

FIG. 3 is a schematic structural view of the connection between the centering disc and the eccentric block of the aluminum alloy processing tool of the present invention;

FIG. 4 is an oblique bottom view of the aluminum alloy processing tool of the invention.

Description of reference numerals:

1. a clamp base; 2. a sub-seat cover; 21. a vent; 22. a guide groove; 3. a fixing mechanism; 31. a fixed arm; 32. a pressing head; 321. a lifting adjusting rod; 322. a middle rotating joint; 323. a pressing piece claw; 324. a connecting portion; 325. a fastener; 326. pressing the protrusion; 327. a fixed space; 4. a connector; 41. a mounting seat; 411. a mounting cavity; 42. connecting blocks; 43. an adjustment assembly; 431. an adjustment groove; 432. a positioning ring; 433. an elastic ejector; 434. a tip; 435. adjusting screws; 5. a latch assembly; 51. a chute; 52. a locking block; 521. a locking part; 522. a lock space; 6. a centering mechanism; 61. a centering block; 611. a recessed groove; 612. a centering space; 62. a drive assembly; 621. an eccentric block; 622. a centering plate; 623. a tension member; 624. hanging a column; 625. a guide block; 7. a drive ring; 8. connecting holes; 81. rotating the block; 9. a mating shaft; 91. a straight slot; 92. a block; 93. a rotating tank; 10. a circular arc protrusion; 11. a circular arc groove.

Detailed Description

The invention is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses aluminum alloy processing frock, this frock is mainly used for the work piece motionless, by the processing scene of cutter activity, for example drilling machine, digit control machine tool etc.. Referring to fig. 1, the fixture comprises a fixture base 1 and a fixing mechanism 3, wherein the fixture base 1 is integrally disc-shaped, a pair of seat covers 2 is fixed on one side of the fixture base 1, the pair of seat covers 2 are integrally ring-shaped, the pair of seat covers 2 enclose a piston space on the fixture base 1, and a plurality of vent holes 21 communicated with the piston space are formed in the side wall of the pair of seat covers 2.

The fixing mechanism 3 is used for pressing a workpiece onto the fixture base 1, specifically, the fixing mechanism 3 includes a fixing arm 31 and a pressing head 32, one end of the fixing arm 31 is hinged to the fixture base 1 through a connector 4, specifically, the connector 4 includes a mounting seat 41, a connecting block 42 and an adjusting component 43, the mounting seat 41 is fixed on one side of the fixture base 1, which faces away from the auxiliary seat cover 2, and meanwhile, a mounting cavity 411 is formed in the center of the mounting seat 41. The connecting block 42 is cylindrical, the cross-sectional dimension of the connecting block is gradually reduced in the process of extending from one end to the other end, and the end with the larger diameter of the connecting block 42 is inserted into the mounting cavity 411 and is constrained in the mounting cavity 411 under the action of the adjusting assembly 43.

Referring to fig. 1 and 2, specifically, the adjusting assembly 43 includes an adjusting groove 431, a positioning ring 432, and an elastic ejecting member 433, the adjusting groove 431 is opened on the side wall of the mounting seat 41 and is communicated with the mounting cavity 411, the positioning ring 432 is a fracture ring, two ends of the positioning ring 432 are respectively provided with a tip 434, the positioning ring 432 is embedded in the adjusting groove 431, and the diameter of the opening of the positioning ring 432 is greater than the inner diameter of the mounting cavity 411, so that the positioning ring 432 is not easily moved along the depth direction of the mounting cavity 411. The elastic ejector 433 selects a spring, is placed in the mounting cavity 411 and is located between the bottom of the mounting cavity 411 and the connecting block 42, and provides an upward bouncing driving force for the connecting block 42.

In order to limit the ejection of the connecting block 42 from the mounting cavity 411, an adjusting screw 435 is disposed through the side wall of the mounting seat 41, the adjusting screw 435 has two threads with opposite turning directions, and the two threads of the adjusting screw 435 are respectively in threaded connection with the two ends 434 of the positioning ring 432, so that when the adjusting screw 435 rotates, the opening of the positioning ring 432 can be driven to expand or contract, and the connecting block 42 can adjust the length of the connecting block extending out of the mounting cavity 411 under the constraint of the positioning ring 432.

The fixing arm 31 is hinged to one end of the connecting block 42 outside the mounting cavity 411, the other end of the fixing arm crosses two sides of the clamp base 1, and a locking assembly 5 is arranged on the clamp base 1 for restraining the free end of the fixing arm 31.

The locking assembly 5 includes a sliding groove 51 and a locking block 52, the sliding groove 51 is opened on a side wall of the fixture base 1 far away from the mounting seat 41, and a depth of the sliding groove extends along a diameter direction of the fixture base 1. The slider is provided with a plurality of, and different slider sizes are different, and the size is changed from small to big, and during concrete installation, the slider is inserted and is located in spout 51, and the part that the slider is located anchor clamps base 1 surface forms hasp portion 521 integratively, is formed with the hasp space 522 that is used for supplying the tip embedding of fixed arm 31 between hasp portion 521 and the anchor clamps base 1 surface, and the one end that the fixed arm 31 is kept away from connecting block 42 is inlayed and is located in hasp space 522 to be fixed on anchor clamps base 1 under the restraint of locking piece 52.

After the locking blocks 52 with different sizes are installed on the fixture base 1, the sizes of the locking spaces 522 are also different, and the locking spaces 522 are changed from small to large according to the change of the locking blocks 52, so that when the extension length of the fixing arm 31 along with the connecting block 42 is changed, the locking blocks 52 can also be changed adaptively, and the fixing arm 31 can be in a state parallel to the surface of the fixture base 1 to restrain a workpiece more stably.

Meanwhile, in order to improve the connection stability between the fixing arm 31 and the locking piece 52, the arc protrusion 10 is integrally arranged at one end of the fixing arm 31, which is used for being buckled with the locking piece 52, the arc groove 11 is correspondingly arranged on the locking part 521 of the locking piece 52, and when the fixing arm 31 and the locking part 521 are buckled with each other, the arc protrusion 10 is embedded into the arc groove 11, so that the fixing arm 31 and the locking piece 52 are not easy to be separated.

The pressing head 32 comprises a lifting adjusting rod 321, a middle joint 322 and a pressing claw 323, wherein the lifting adjusting rod 321 is in a screw shape, the thread of the lifting adjusting rod is arranged in the middle of the fixing arm 31 in a penetrating manner, and the distance between the lifting adjusting rod and the clamp base 1 can be adjusted by screwing. The middle joint 322 is mounted at one end of the lifting adjusting rod 321 close to the clamp base 1 in a universal joint manner, so that the middle joint 322 can rotate on the lifting adjusting rod 321 at multiple angles. The pressing piece claws 323 are at least three, a connecting part 324 is uniformly arranged on each pressing piece claw 323, a fastening part 325 penetrates through the connecting part 324 of each pressing piece claw 323, the fastening part 325 selects a bolt, the bolt is in a countersunk form on the pressing piece claw 323 at the lowest part, the pressing piece claws 323 are positioned on the same plane after the connecting parts 324 on the pressing piece claws 323 are mutually overlapped, meanwhile, pressing protrusions 326 used for abutting against the surface of a workpiece are integrally arranged at one end, away from the connecting part 324, of the pressing piece claw 323 and facing one side of the clamp base 1, and a fixing space 327 used for placing the workpiece is formed between the pressing piece head 32 and the clamp base 1.

When a workpiece is fixed, the lifting adjusting rod 321 is screwed to drive the pressing piece claw 323 to abut against the workpiece, at the moment, the reaction force applied when the pressing piece claw 323 contacts with the workpiece can act on the fixing arm 31 to push the fixing arm 31 towards the side far away from the clamp base 1, so that the free end of the fixing arm 31 and the locking part 521 of the locking block 52 abut against each other, and by means of the friction force caused by mutual extrusion between the fixing arm 31 and the locking block 52 and the matching of the arc protrusion 10 and the arc groove 11, the fixing arm 31 is not easy to separate from the locking block 52 for overlapping, so that the clamp can compress and position the workpiece.

Referring to fig. 1 and 3, in order to improve the clamping stability of the workpiece, a centering mechanism 6 is further disposed on the fixture base 1, the centering mechanism 6 includes a centering block 61 and a driving assembly 62, the centering block 61 is in a circular arc block shape, at least three centering blocks are disposed, and the centering block is slidably mounted on the fixture base 1 in a manner similar to the locking block 52, at this time, an outer convex surface of the centering block 61 faces the center of the fixture base 1, and a concave groove 611 is formed on one concave side of the centering block 61. The plurality of centering blocks 61 are distributed annularly around the center of the fixture base 1, and a centering space 612 for placing a workpiece is formed among the plurality of centering blocks 61.

The driving assembly 62 comprises an eccentric block 621, a rotating member and a tensioning member 623, wherein the eccentric block 621 is rotatably mounted on the clamp base 1 and abuts against the surface of the centering block 61 in the recess 611. Hanging columns 624 are fixed on the rotation center of the eccentric block 621 and the centering block 61, springs are selected for the tension member 623, and two ends of the tension member 623 are respectively hooked on the two hanging columns 624, so that the eccentric block 621 and the centering block 61 are always kept in abutting connection.

Referring to fig. 3 and 4, the rotating member is used for driving the eccentric block 621 to rotate so as to drive the centering blocks 61 to approach or leave each other, specifically, the rotating member includes a centering disc 622, a guide groove 22 communicated with the piston space and axially formed along the fixture base 1 is formed on the side wall of the auxiliary seat cover 2, a guide block 625 is fixed on the side wall of the centering disc 622, the centering disc 622 is installed in the piston space, and the guide block 625 is embedded in the guide groove 22 so as to guide the moving direction of the centering disc 622. Meanwhile, a driving ring 7 is fixed on one side of the centering disc 622, which faces away from the clamp base 1, and the driving ring 7 can facilitate the connection of a piston rod of a power source such as an air cylinder or an oil cylinder with the centering disc 622, so that the centering disc 622 can move in a piston space.

The position that corresponds the eccentric block 621 axis of rotation on the centering disc 622 has seted up connecting hole 8, an organic whole is provided with convex rotatory piece 81 on the inner wall of connecting hole 8, the one end that the axis of rotation of eccentric block 621 passed anchor clamps base 1 is fixed with and is used for cooperation axle 9, adopts a word groove 91 and a word piece 92 to peg graft each other the back between the axis of rotation of cooperation axle 9 and eccentric block 621, and the fastener 325 such as borrow the bolt is fixed again to produce relative rotation between cooperation axle 9 and the eccentric block 621. Offer the swivelling chute 93 that is the spiral trend along its length direction on this cooperation axle 9, one end that eccentric block 621 was kept away from to swivelling chute 93 is linked together with the tip of cooperation axle 9, during the assembly, cooperation axle 9 is worn to locate in the connecting hole 8 on centering disc 622, and in rotatory groove 93 is inlayed to the rotating block 81, make centering disc 622 be doing the in-process of piston motion, it is rotatory to drive eccentric block 621 through the cooperation of rotating block 81 and swivelling chute 93, and eccentric block 621 is at rotatory in-process, then can promote centering block 61 and be close to each other or keep away from, in order to realize the clamp of work piece lateral wall or relax.

The implementation principle of the aluminum alloy processing tool in the embodiment of the application is as follows: during the use, put into the encirclement of centering piece 61 with the work piece earlier, make centering piece 61 form preliminary centre gripping to the work piece, make work piece automatic adjustment roughly be in anchor clamps base 1 central point and put, counterpoint when conveniently drilling, then buckle fixed arm 31 and locking piece 52 each other, twist again and twist lift adjusting lever 321, make casting die claw 323 support the pressure to the work piece formation, for ordinary centre gripping formula frock, this kind of diversified centre gripping mode of retraining can improve the positional stability of work piece greatly, thereby make the work piece be difficult to take place to drop in the course of working.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an aluminum alloy processing frock, includes anchor clamps base (1) and sets up on anchor clamps base (1) and be used for fixed work piece fixed establishment (3), its characterized in that: the fixing mechanism (3) comprises a fixing arm (31) with one end hinged to the clamp base (1), a pressing head (32) which is arranged on the fixing arm (31) in a lifting mode and used for pressing a workpiece on the clamp base (1), a fixing space (327) for placing the workpiece is formed between the pressing head (32) and the clamp base (1), and a locking and buckling assembly (5) used for locking the free end of the fixing arm (31) is arranged on one side, far away from the rotating shaft of the fixing arm (31), of the clamp base (1).

2. The aluminum alloy machining tool of claim 1, characterized in that: the pressing piece head (32) comprises a lifting adjusting rod (321) which is arranged on the fixing arm (31) in a penetrating mode through threads, a middle rotating joint (322) which is arranged at one end, close to the clamp base (1), of the lifting adjusting rod (321) in a universal joint mode, and a pressing piece claw (323) which is rotatably arranged on the middle rotating joint (322), wherein a pressing protrusion (326) which is used for abutting against the surface of a workpiece is arranged on the surface, facing one side of the clamp base (1), of the pressing piece claw (323).

3. The aluminum alloy machining tool of claim 2, characterized in that: the pressing piece claws (323) are at least three, a connecting part (324) is integrally arranged on each pressing piece claw (323), the pressing piece claws (323) are positioned on the same plane after the connecting parts (324) on the pressing piece claws (323) are mutually overlapped, and the pressing piece claws (323) are rotatably mounted with the middle rotating joint (322) in a mode that a fastener (325) penetrates through the connecting parts (324) of all the pressing piece claws (323) simultaneously and then is in threaded connection with the middle rotating joint (322).

4. The aluminum alloy machining tool according to any one of claims 1 to 3, characterized in that: fixed arm (31) articulate on anchor clamps base (1) through a connector (4), connector (4) including be fixed in on anchor clamps base (1) and have mount pad (41) of installation cavity (411), flexible setting in connecting block (42) of mount pad (41) in installation cavity (411), set up on mount pad (41) and be used for adjusting connecting block (42) length of stretching out's adjusting part (43), fixed arm (31) articulate in the one end that connecting block (42) are located outside installation cavity (411).

5. The aluminum alloy machining tool of claim 4, characterized in that: adjusting part (43) including set up on mount pad (41) lateral wall and with adjustment tank (431) that installation cavity (411) is linked together, inlay in adjustment tank (431) and circle holding ring (432) that mouth diameter is greater than installation cavity (411) internal diameter, set up in installation cavity (411) and lie in elastic ejection piece (433) between installation cavity (411) tank bottom and connecting block (42), holding ring (432) are the fracture ring, the cross sectional dimension of connecting block (42) reduces from installation cavity (411) tank bottom toward the in-process that extends outward gradually, the both ends of holding ring (432) are provided with end (434) respectively, adjusting screw (435) are worn to be equipped with to the screw thread on two ends (434) of holding ring (432), adjusting screw (435) are gone up to have two sections to opposite screw threads of spiraling.

6. The aluminum alloy machining tool according to any one of claims 1 to 3, characterized in that: the utility model provides a locking device, including offer on the lateral wall of anchor clamps base (1) and degree of depth along spout (51) that anchor clamps base (1) diameter direction extends, a plurality of be used for forming with spout (51) and peg graft complex locking piece (52), be formed with hasp portion (521) on locking piece (52), form hasp space (522) that are used for supplying the tip embedding of fixed arm (31) between the surface of hasp portion (521) and anchor clamps base (1), and the height of hasp space (522) is along with the change of locking piece (52) and increase gradually.

7. The aluminum alloy machining tool according to any one of claims 1 to 3, characterized in that: still be provided with centering mechanism (6) on anchor clamps base (1), centering mechanism (6) are including sliding install on anchor clamps base (1) and along anchor clamps base (1) radial motion centering piece (61), set up on anchor clamps base (1) and be used for driving about centering piece (61) towards drive assembly (62) that anchor clamps base (1) central motion, centering piece (61) are provided with threely at least, are the annular distribution around the center of anchor clamps base (1) between a plurality of centering pieces (61), and form between a plurality of centering pieces (61) and be used for supplying the centering space (612) that the work piece put into.

8. The aluminum alloy machining tool of claim 7, characterized in that: the driving assembly (62) comprises an eccentric block (621) which is rotatably installed on the clamp base (1) and is located on the centering block (61) and faces away from one side of the center of the clamp base (1), a rotating piece which is arranged on the clamp base (1) and is used for driving the eccentric block (621) to rotate, a tensioning piece (623) which is arranged between the eccentric block (621) and the centering block (61) and is used for driving the arc side walls of the centering block (61) and the eccentric block (621) to abut tightly, and a concave groove (611) used for embedding the eccentric block (621) is formed in the surface of the centering block (61) facing one side of the eccentric block (621).

9. The aluminum alloy machining tool of claim 8, characterized in that: a sub-seat cover (2) is fixed on the surface of one side of the clamp base (1) back to the eccentric block (621), a piston space for installing the rotating piece is formed between the auxiliary seat cover (2) and the clamp base (1), and the side wall of the auxiliary seat cover (2) is provided with an air vent (21) communicated with the piston space, the rotating piece comprises a centering disc (622) which is arranged in the piston space in a sliding way, a connecting hole (8) is arranged on the centering disc (622), a rotating block (81) is integrally arranged on the inner wall of the connecting hole (8), a matching shaft (9) which is used for penetrating into the connecting hole (8) is fixed at one end of the eccentric block (621) which penetrates through the clamp base (1), the matching shaft (9) is provided with a rotating groove (93) which is spirally arranged along the length direction of the matching shaft, and the rotating block (81) is embedded in the rotating groove (93).

10. The aluminum alloy machining tool of claim 8, characterized in that: the tensioning piece (623) comprises a tension spring, a hanging column (624) is fixed at the rotating center of the eccentric block (621), one end of the tensioning piece (623) is hooked on the centering block (61), and the other end of the tensioning piece (623) is hooked on the hanging column (624).